ML145106 Datasheet | LANSDALE Semiconductor

.. ML145106 PLL Frequency Synthesizer CMOS INTERFACES WITH DUAL- MODULUS PRESCALERS Legacy Device: Motorola MC145106 The ML145106 is a phase- locked loop (PLL) frequency synthesizer constructed in CMOS on a single monolithic structure. This synthesizer finds applications in such areas as AM radio, shortwave, amateur radio, CB and FM transceivers. The device contains an oscillator/amplifier, a 210 or 211 divider chain for the oscillator signal, a programmable divider chain for the input signal, and a phase detector. The ML145106 has circuitry for a 10.24 MHz oscillator or may operate with an external signal. The circuit provides a 5.12 MHz output signal, which can be used for frequency tripling. A 29 programmable divider divides the input signal frequency for channel selection. The inputs to the programmable divider are standard ground- to- supply binary signals. Pull- down resistors on these inputs normally set these inputs to ground enabling these programmable inputs to be controlled from a mechanical switch or electronic circuitry. The phase detector may control a VCO and yields a high level signal when input frequency is low, and a low level signal when input frequency is high. An out- of- lock signal is provided from the on- chip lock detector with a “0” level for the out- of- lock condition. - - - - - - - - - - Single Power Supply Wide Supply Range: 4.5 to 12 V Provision for 10.24 MHz Crystal Oscillator 5.12 MHz Output Programmable Division Binary Input Selects up to 29 On- Chip Pull- Down Resistors on Programmable Divider Inputs Selectable Reference Divider, 210 or 211 (Including ÷ 2) Three- State Phase Detector See Application Note AN535 and Article Reprint AR254 Chip plexity: 880 FETs or 220 Equivalent Gates P DIP 18 = VP PLASTIC DIP CASE 707 18 1 20 1 SOG 20W = -6P SOG PACKAGE CASE 751D CROSS REFERENCE/ORDERING INFORMATION LANSDALE MOTOROLA PACKAGE P DIP 18 MC145106P ML145106VP SOG 20W MC145106DW ML145106-6P Note: Lansdale lead free (Pb) product, as it bees...